Caroline Spencer, Duchess of Marlborough

Her Grace The Duchess of Marlborough
Caroline, Duchess of Marlborough, by Sir Joshua Reynolds
Born	Lady Caroline Russell (1743-01-13)13 January 1743
Died	26 November 1811(1811-11-26) (aged 68) Blenheim Palace
Spouse(s)	George Spencer, 4th Duke of Marlborough ​ ​ (m. 1762)​
Issue	Caroline Ellis, Viscountess Clifden Lady Elizabeth Spencer George Spencer-Churchill, 5th Duke of Marlborough Lady Charlotte Nares Lord Henry John Spencer Anne Ashley-Cooper, Countess of Shaftesbury Lady Amelia Pytches Boyce Francis Spencer, 1st Baron Churchill
Father	John Russell, 4th Duke of Bedford
Mother	Gertrude Leveson-Gower

Caroline Spencer, Duchess of Marlborough (13 January 1743 – 26 November 1811), formerly Lady Caroline Russell, was the wife of George Spencer, 4th Duke of Marlborough.